A man is arrested and condemned to five years in jail for robbery. After serving his term, he is out for revenge on the gang members he considers were to blame for his arrest. The prize for this deadly fight is a large cache of diamonds.

A serial killer is on the loose. His victims are unfaithful wives and he always leaves compromising photographs at the crime scene.

Arms trafficking with the Indians on the one hand and acquiring documents concerning the ownership of a goldmine on the other are the principal interests of Quin and Gomez, the highly suspicious guests at Papa Martinez' inn. The unexpected arrival of the sheriff Thomas, and the journalist, George, upsets the plans of the two unsavoury allies and they have to try every kind of trick to win out against such adversaries.